Embedded Systems Conference
Breaking News
Newest First | Oldest First | Threaded View
User Rank
re: Sources: Unity ousts CEO, moves to IP model
Skeptic   8/18/2010 3:41:41 PM
Do the math, people! "the company is moving from a fab to an intellectual-property (IP) model" + "Unity is in the final stage of completing a deal with a major memory company" = "we are selling our IP to Micron for next to nothing."

unknown multiplier
User Rank
re: Sources: Unity ousts CEO, moves to IP model
unknown multiplier   8/18/2010 3:27:44 PM
Leakage current plagues all switching devices: memories, diodes, transistors. Even stored charge leaks. You have to operate orders of magnitude above leakage, preferably. Another interesting consideration, is whether voltage or current is the cause or the effect.

3D Guy
User Rank
re: Sources: Unity ousts CEO, moves to IP model
3D Guy   8/18/2010 3:03:18 PM
Having worked in this area for many years, I feel most of the next-generation memories have serious challenges to implementation. Widespread adoption will take at least 5-10 years to happen, if at all. Have listed a few challenges to each memory type below (these challenges are well-known in the industry). (1) Unity CMOx - Retention is well-known to be a challenge (10 years 85C or even 70C has not been demoed by Unity yet at 1-3uA reset current), getting large array sizes required for competing with NAND needs a bidirectional selector which is again very challenging, Unity uses some pretty exotic fab-unfriendly materials like Pt and PCMO. On the positive side, I have never seen 1uA reset current demonstrated by anyone else. (2) Phase change memory - Reset current numbers are greater than 100uA at 45nm, and these numbers don't scale with area if you want to keep thermal disturb a non-issue (Ireset scales with linear dimension). Essentially, when you scale to 16nm, wiring resistance shoots up exponentially, but reset current is still very high, so IR drop budget increases. Let's say you have 40kohm wiring and periphery resistance at 45nm, then IR drop budget is 40kohm * 100uA = 4V!!!! This restricts array size, and makes it hard to compete with NAND, which is the biggest market for NVM today. On the positive side, it is a fairly mature technology, and if executed very well, could give NOR a run for its money. (3) RRAM - Requires bidirectional selector, there is a tradeoff between retention and reset current that is difficult to manage, reset current doesn't scale (for the same filament width and retention performance). On the positive side, doesn't require exotic materials.

Napoleon on Elba
User Rank
re: Sources: Unity ousts CEO, moves to IP model
Napoleon on Elba   8/18/2010 5:58:56 AM
The IP model requires extensive legal expertise and very deep pockets. Tessera, Rambus, Interdigital & Tivo all have big scares to show. Multinationals (apart from Japanese) may opt to try to bleed to death a startup by draging it through the US court system instead of taking a license. With legal costs at up to 100k/day, they easily succeed with 95% of the adversaries and can eventually sign the surviving 5% with little penalty.

User Rank
re: Sources: Unity ousts CEO, moves to IP model
resistion   8/18/2010 1:16:17 AM
Timing is critical. As long as the perception is DRAM and Flash have some ways to go, the chance to replace these directly is next to impossible. But these other memories are excellent in their own right (higher speed, higher endurance, for example), they could drive some other applications in some niches here and there. RRAM has an advantage in requiring virtually no new materials.

User Rank
re: Sources: Unity ousts CEO, moves to IP model
mark.lapedus   8/17/2010 11:47:03 PM
I am worried about Unity. I am also worried about the other next-gen memory companies. Will phase-change, MRAM, or RRAM make it?

In conjunction with unveiling of EE Times’ Silicon 60 list, journalist & Silicon 60 researcher Peter Clarke hosts a conversation on startups in the electronics industry. One of Silicon Valley's great contributions to the world has been the demonstration of how the application of entrepreneurship and venture capital to electronics and semiconductor hardware can create wealth with developments in semiconductors, displays, design automation, MEMS and across the breadth of hardware developments. But in recent years concerns have been raised that traditional venture capital has turned its back on hardware-related startups in favor of software and Internet applications and services. Panelists from incubators join Peter Clarke in debate.
Most Recent Comments
David Ashton
Flash Poll
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.